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. Choose a location so that there is plenty of room to guide the cables away from the cable modem without straining or crimping them. . Choose a location that allows adequate ventilation around the cable modem. . Choose a location for the cable modem that is adjacent to your telephone equipment if you plan on connecting your phone directly to the cable modem. Note: If you are using the cable modem to provide service to several telephones, a professional installer can connect the cable modem to your existing home telephone wiring. Install the Battery (Optional) Your cable modem may include one rechargeable Lithium-Ion battery to provide stand-by operation in the event of an AC power failure. We recommend that you install the battery before mounting the cable modem to a wall (if you decide to do so) and before installing the cable modem in your home. It is possible to use the cable modem without the battery. However, if you choose to operate the cable modem without a battery, you will not have telephone service during a power outage. For information on battery maintenance, refer to Maintaining the Battery (on page 27). Installing the Battery Installing the battery requires no tools. Follow these instructions to install the battery. WARNING: Fully charged high-capacity rechargeable batteries should be handled with care. Replace only with the battery recommended by the manufacturer. Do not disassemble it or attempt to recharge the battery outside the system. Do not crush, puncture, dispose of in a fire, short the external contacts, or expose to high temperature or immerse in water or other liquids. Dispose of the battery in accordance with local regulations and instructions from your service provider. 1 Turn the cable modem so that you are facing the side with the battery compartment. 2 Gently release the latch to open the battery cover and gain access to the battery compartment. 3 Insert the battery into the battery compartment. Do not force the battery into the compartment, but be sure to press the battery all the way in until it seats fully. 4 Close the battery compartment door. Important: After you install the cable modem and plug it into an AC electrical outlet as described in Install the Cable Modem (on page 18), it can take as long as 24 hours for the battery to charge fully. However, you can begin using your high-speed Internet and telephone service immediately after installation. See Normal Operations (AC Power Applied) (on page 24) for information on how the LEDs on the front of the cable modem indicate the state of the battery charge. How Do I Mount the Cable Modem on a Wall? (Optional) If you wish, you can mount the cable modem to a wall. This section describes how to mount the cable modem to a wall, and includes a list of equipment you will need along with suggestions for choosing an appropriate place to mount the cable modem. Important: If you have not already done so, insert the battery in the cable modem before you mount the cable modem on a wall (if desired) or before you install the cable modem in your home. For assistance inserting the battery in the cable modem, go to Install the Battery (on page 13). Select an Appropriate Place to Mount the Cable Modem You may mount the cable modem to a wall that is made of cement, wood, or drywall. When choosing an appropriate mounting place, refer to the following recommendations: . Ensure that the mounting location is free of obstructions on all sides, and the cables should be able to easily reach the cable modem without strain. . Leave sufficient clearance between the bottom of the cable modem and any flooring or shelving underneath to allow access to cabling. . Allow enough slack in all cables so that the cable modem can be removed for any required maintenance without disconnecting the cables. . Choose a location that allows adequate ventilation around the cable modem. Equipment Needed Verify that you have the following items that you will need to mount the cable modem: . Two wall anchors for #8 x 1-inch screws . Two #8 x 1-inch pan head sheet metal screws . Drill with a 3/16-in. wood or masonry bit, as appropriate for the wall composition . A copy of the wall-mounting illustrations shown on the following pages Position the Cable Modem Use the following illustrations to guide you in positioning the cable modem on the wall. Location and Dimensions of the Wall-Mounting Slots The following illustration shows the location and dimensions of the wall-mounting slots on the bottom of the cable modem. Use this illustration as a guide for mounting the cable modem to the wall. Note: Image not to scale. Mounting the Cable Modem on a Wall 1 Using a drill with a 3/16-inch bit, drill two holes at the same height and 4 inches apart. Note: The preceding graphic illustrates the location of the mounting holes on the back of the cable modem. 2 Are you mounting the cable modem into a drywall or concrete surface where a wooden stud is available? . If yes, go to step 3. . If...

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